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🍱 Lunchbox

Hello ( Β΄ Ο‰ ` )γƒŽοΎž Welcome to 🍱 Lunchbox. So... you're into Deno πŸ¦• Fresh πŸ‹? Damn, me too. I've found myself using nothing but Fresh for most of my web dev projects. But I'm not that much of a user of existing web component libraries. Even though I respect these, I'm more of a do-it-yourself kind of guy. That is why I created Lunchbox, and I couldn't help creating an opinionated product that is built to have my dream features.

Ideas behind the library

Alright, so what are these features? Instead of listing what can technically be done with this library, the way to describe it is by its core ideas.

Based on Atomic Design

Shoutout to Brad Frost, thank you for this great piece of work. A popular concept about modularity in design systems is to consider them inherently hierarchical. In this, I strongly disagree because atoms are of no less importance than organisms. But I do agree that they have one fundamentally different characteristic. Atoms are components only made by nature's subatomic particles a.k.a. pure HTML Elements. Am I stretching too far with the atomic analogy?

Trivial HTML good practices

Component libraries are usually ambiguous about how they handle inner logic, creating the need to find out how does it do X. For example, some might have only one component for both <input/> and <textarea/>, which might change depending on a prop. "Or was it something else? Wait, what was the name of the class that changes when it's a TextArea?" Having it closer to the HTML Element logic makes the inner logic of the components really obvious and apparent.

Let's take as an example the <Input> component. When using it you're expected to use the best practices with it, plus additional features. These best practices are multidisciplinary. The field of UX foments the use of a label and a contextual error message to guide the user. That gives us the props <Input label="" error="" />. These features are not native to the simple <input /> HTEML element, it must work together with other elements. It is in this next area where the good practices aren't forgotten. Like nesting the input inside a label element (<label><input /></label>). Finally, every visual element inside the component was designed to maintain a perfect vertical rhythm for good aesthetic practices even in the aesthetics of the interface.

Configure anything easily

Let us continue with the example of the <Input /> component. As a very strict rule, all components must be able to render a useful default state without any defined prop. so simply using <Input /> will create a functional input field even without a label or anything. Likewise, styles and CSS classes are optional and can be removed with the universal prop nostyles.

Also, additional classes can be appended simply by adding a class to the component. Having <Input class="x" /> will add the class "x" to the <input /> element inside it. Every HTML Element and framework component that make up a particular component will be called a "piece". Every piece of every component can be referenced using the universal component fwd. This is an oversimplified html code for the <Input /> component:

<div {...fwd.container}>
  <label {...fwd.label}>
    <Text {...fwd.text}>
      <sup {...fwd.required} />
    </Text>
    <input {...params} /> {/* Component's main element */}
  </label>
  <Text {...fwd.error} />
</div>

The piece name is used in the CSS classes and in the fwd prop (<Input fwd={{ label: {class: 'x'} }} will add the class 'x' to the piece "label").


Getting started

Step 1: Importing Lunchbox

Assuming you are using Deno Fresh, you could simply add lunchbox's root directory to your import section inside your project's deno.json file. I would recommend the usage of Resin by yahiro, it is an excellent CSS-in-JS library.

{
  "imports": {
    "lunchbox/": "https://deno.land/x/lunchbox@vX.X.X/",
    "resin": "https://deno.land/x/resin@vX.X.X/mod.ts"
  }
}

Step 2: Add the Lunchbox plugin

Inside your fresh.config.ts file, you can add the Lunchbox plugin. It is fully compatible with Tailwind so you can run both without any issues:

// ~/fresh.config.ts
import { defineConfig } from "$fresh/server.ts";
import tailwind from "$fresh/plugins/tailwind.ts";
import lunchbox from "lunchbox/plugin.ts";

export default defineConfig({
  plugins: [tailwind(), lunchbox()],
});

Step 3: Setup the _app.tsx file

Finally, a few things must be added in the _app.tsx file:

  1. Add class="lunchbox" to the <html/> tag.
  2. Add id="lunchbox-body" to the <body/> tag. It should end up with this modifications:

Usage

After setting up Lunchbox in your project, simply import from the lunchbox/components/ to start using any component. By being inside the /components/

// ~/routes/example.tsx. OR  ~/components/example.tsx
import Button from "lunchbox/components/Button/index.tsx";

export default function () {
  return <Button>Click me!</Button>;
}

Using islands

It is a little different for islands, for starters, you must import them from the ~/islands/ directory. This informs you that the imported component requires client-side javascript to function.

// ~/islands/Menu.tsx
export { default } from "lunchbox/islands/Menu/index.tsx";

After doing this now you can import it from a route or wherever:

// ~/routes/example.tsx. OR  ~/components/example.tsx
import Menu from "../islands/Menu.tsx";

export default function () {
  return <Menu>This is a menu!</Menu>;
}